Trestle



M. S. LIKE.

(No Model.)

TRBSTLE.

Patented Feb. 1, 1887.

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Unire lteres Peretti* @trice MARTlN S. LiKE, OF PRINCETON, IOVA.

TRES'TLE.

SPECIFICATION forming part of Letters Patent No. 355,844, dated February 1, 1857.

Appication filed July 3, i856. Serial No. 207,051. (No model.)

.To @ZZ when?, t may concern:

Beit known that l, MARTIN SrLns Linn, a citizen of the United States, residingat Princeton, in the county of Scott and State of Iowa, have in vented certain new and useful lmproveinents in Trcstles; and I do hereby declare the following to be afnll, clear, and exact description ol the invention, such as will enable others skilled in the art to which. it appertains to make and use the same.

My invention relates to improvements in supporting-tiestles for use of carpenters, builders, and others; and my said invention con sists in certain details oi construction and arrangement ci' the parts composing thesame, whereby it may be both longitudinally and vertically adjusted or knocked down, and Whether in an extended or other position the parts will` be securely held from spreading, as will be hereinafter more particularly described, und pointed out in the claim.

The object of this invention is to so form the body of a trestlc as Well as its supporting-legs that each of these parts may be removed or adjusted and securely held in an adj usted position, so that either or both the length and height of the trestle may be increased, its use in a level position upon uneven or inclined surfaces permitted,or it may be knocked down to occupy a small und compact space when not in use or during transportation.

Fora better understanding of the details of construction oi' a trestle when constructed according to my invention, reference must now be had to the accompanying drawings, in Which- Figure l represents a view in side elevation of the trcstle with its body and legs in their contracted position; Fig. 2, a plan View shoW- ing the trestle as in its extended position, Fig. 3, an end elevation representing the trestle asin use upon an inclined surface or plane. Fig.4iseview of one ofthelongitndinal braces `for the legs; and Fig. 5 is a detached vieiv of one of said legs, showing the construction thereof.

The top piece or body of the trestle is lcomposed of tvfo members, A A', of equal length and of any desired proportion, secured to each other by two broad bands, c and c', which encircle both of said members and are secured at the outer ends thereof', one upon each mexn ber-that is, the band cb being secured to the end of member A,Whilethe band c is secured to the one A, so that the parts of the body are held from lateral displacement or separation, yet 'they may slide longitudinally upon each other, as shown in Fig. 2, when permitted so to move by the pinch-screw a, which passes through the band c and inipinges against the face ot' the member At the outer ends of each of these parts A and A of the body, and upon both sides thereof, are secured sockets B for the reception of the top ends of the supporting-legs, which sockets, as shown in Fig. 3, are made tapering, so as to give the proper spread to said legs et their lower ends.

The supporting-legs are arranged upon the same plan as the body-that is to say, they are composed of tivo separate members, C and G', unitedto each other by two bands or clips, c and c', which encircle the same and are secu red thereto at their opposite ends, one of which clips, c, is provided with a pinch or clamp screw, as at c?, so as to securely hold the parts together at any point desired. Upon both the inside and outside ofthe lower clips, c', of the legs are formed eyes d andV e-the 'ones d to receive the short brace-rod D, whereby the separation or spreading apart of the outer ends ofthe legs is prevented, and the ones e to receive the forked ends E' of the long brace E, to

prevent the expansion or longitudinal separation of the legs. These braces E are, as before stated, formed with a forked end, E', and the single opposite end thereof is received in Yan eye secured to the outer ends of each ofthe members A A of the body, as seen at F, Fig. l. This constitutes the construct-ion of the several parts composing a trestle when constructed according to my invention, except that the end of the member of the legs which is received in the sockets B ot' the body is beveled ott, as seen at C?, whereby the necessary spread is given to said legs, and said legs, when inserted within said sockets, are held from accidental removal or escape theren from by e pin, as at G, which passes through the said sockets, body, and end of legs, as seen in Fig. 3.

ICO

When in their collapsed position, the body of the trestle, as also its legs, are of the usual length, so that when the body or legs are extended to their full extent the trestle Will be double its usual length and height. Thebody may be extended without extending the legs, or vice versa, and only one or more of the said legs may be extended; or the extension ofeach leg may vary so that the top piece will always remain in alevel position,while the legs occupy uneven or inclined surfaces; and, again, each of these parts composing the trestle is made removable, so that said trestle may be knocked down and its parts arranged into a small compact bundle for shipment or packing away when not in use.

Having thus fully described my invention, what I claim as new therein, Vand desire to sespecified MARTIN S. LIKE.

In presence of- HENRY C. CHAPMAN, AUGUsT BRASCH.

-as described and shown, for the purposes 3o 

